17-letter words containing a, l, b, o, r
- cross-lot bracing — bracing extending from one side of an excavation to the opposite to retain the earth on both sides.
- cypriot syllabary — a syllabic script in use on Cyprus in the first millennium b.c., used for the writing of Greek and of an unknown language.
- cytotrophoblastic — Relating to, or containing, cytotrophoblasts.
- deoxyribonuclease — DNase.
- dicarboxylic acid — any carboxylic acid that contains two carboxyl groups per molecule
- digital dashboard — (software) A personalised desktop portal that focuses on business intelligence and knowledge management.
- dishonourableness — Alternative spelling of dishonorableness.
- division of labor — a production process in which a worker or group of workers is assigned a specialized task in order to increase efficiency.
- double pair royal — a set of four cards of the same denomination, worth 12 points.
- double quatrefoil — a charge having the form of a foil with eight leaves, used especially as the cadency mark of a ninth son.
- double refraction — the separation of a ray of light into two unequally refracted, plane-polarized rays of orthogonal polarizations, occurring in crystals in which the velocity of light rays is not the same in all directions.
- double track line — a railway line with double track
- douglas engelbart — (person) Douglas C. Engelbart, the inventor of the mouse. On 1968-12-09, Douglas C. Engelbart and the group of 17 researchers working with him in the Augmentation Research Center at Stanford Research Institute in Menlo Park, California, USA, presented a 90-minute live public demonstration of the on live system, NLS, they had been working on since 1962. The presentation was a session in the of the Fall Joint Computer Conference held at the Convention Center in San Francisco, and it was attended by about 1000 computer professionals. This was the public debut of the computer mouse, hypertext, object addressing, dynamic file linking and shared-screen collaboration involving two persons at different sites communicating over a network with audio and video interface. The original 90-minute video: Hyperlinks, Mouse, Web-board.
- downward mobility — movement from one social level to a higher one (upward mobility) or a lower one (downward mobility) as by changing jobs or marrying.
- downwardly mobile — See under vertical mobility (def 1).
- downwardly-mobile — See under vertical mobility (def 1).
- drive-by download — an incidence of an unwanted program being automatically downloaded to a computer, often without the user's knowledge
- electricity board — a company which supplies electricity
- flowering tobacco — any plant belonging to the genus Nicotiana, of the nightshade family, as N. alata and N. sylvestris, having clusters of fragrant flowers that usually bloom at night, grown as an ornamental.
- fluid lubrication — lubrication in which bearing surfaces are separated by an oil film sustained by the motion of the parts
- fort walton beach — a city in NW Florida.
- four-rowed barley — a class of barley having, in each spike, six rows of grain, with two pairs of rows overlapping.
- frostbite sailing — the sport of sailing in temperate latitudes during the winter despite cold weather.
- garbage collector — refuse collector, dustman
- glastonbury chair — a folding chair having legs crossed front-to-back and having arms connected to the back and to the front seat rail.
- goldbeater's skin — the prepared outside membrane of the large intestine of the ox, used by goldbeaters to lay between the leaves of the metal while they beat it into gold leaf.
- golf ball printer — IBM 2741
- great willow herb — either of two tall, large-flowered willow herbs, Epilobium angustifolium or E. hirsutum.
- haemoglobinometer — an instrument used to determine the haemoglobin content of blood
- henry cabot lodge — Henry Cabot, 1850–1924, U.S. public servant and author: senator 1893–1924.
- high-carbon steel — steel containing between 0.5 and 1.5 per cent carbon
- histamine blocker — any of various substances that act at a specific receptor site to block certain actions of histamine.
- hold one's breath — If you say that someone is holding their breath, you mean that they are waiting anxiously or excitedly for something to happen.
- hold sb to ransom — If you say that someone is holding you to ransom in British English, or holding you for ransom in American English, you mean that they are using their power to try to force you to do something which you do not want to do.
- honorable mention — a citation conferred on a contestant, exhibit, etc., having exceptional merit though not winning a top honor or prize.
- hydrofluorocarbon — Any of a class of partly chlorinated and fluorinated hydrocarbons, used as an alternative to chlorofluorocarbons in foam production, refrigeration, and other processes.
- hyperbolic secant — a hyperbolic function that is the reciprocal of cosh; sech
- hyperbolic spiral — rθ = a, (where a is a constant)
- impressionability — easily impressed or influenced; susceptible: an impressionable youngster.
- in broad daylight — openly, in full public view
- in double harness — in a harness for two animals pulling the same carriage, plow, etc.
- inertial observer — a hypothetical observer who is not accelerated with respect to an inertial system. Newton's laws of motion and the special theory of relativity apply to the measurements which would be made by such observers
- insupportableness — The state of being insupportable; insufferableness.
- insurmountability — incapable of being surmounted, passed over, or overcome; insuperable: an insurmountable obstacle.
- interlibrary loan — a system by which one library obtains a work for a user by borrowing it from another library.
- irrational number — a number that cannot be exactly expressed as a ratio of two integers.
- irreconcilability — incapable of being brought into harmony or adjustment; incompatible: irreconcilable differences.
- irrecoverableness — The quality of being irrecoverable.
- john of salisbury — c1115–80, English prelate and scholar.
- keep your balance — If you keep your balance, for example when standing in a moving vehicle, you remain steady and do not fall over. If you lose your balance, you become unsteady and fall over.